Date   : Mon, 03 Feb 2014 07:36:27 -0800
From   : fozztexx@... (Chris Osborn)
Subject: Problems with BBC Micro

On Feb 3, 2014, at 2:10 AM, J.G.Harston wrote:
> 
> Does the same thing happen in other screen modes? It won't happen in 
> MODE 7 as it doesn't use the address adder, but if it's happening in 
> MODE 0 then exactly the same thing should happen in MODE 1 and MODE 2 as 
> they all use the same amount of screen memory.

Yes, the problem occurs in MODE 0 through 3, and not at all in MODE 4 through 7.

The RAM test I ran was the one I found here:

http://www.stardot.org.uk/forums/viewtopic.php?f=3&t=1871&p=12583